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sinara-hw / Thermostat_EEM

Thermostat with 4 TEC and 8 sensor channels in EEM form factor
CERN Open Hardware Licence Version 2 - Weakly Reciprocal
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D44 assembly #23

Closed jordens closed 3 years ago

jordens commented 4 years ago

With the connectors like this, the two boards have to be separated before soldering the D44 connectors. Breaking on the drill line after soldering probably won't work because you can't bend the connectors when connected. Is this the intention?

image

gkasprow commented 4 years ago

breaking will be easy obraz

The connectors will be mounted after all, but U are right, they can be also mounted automatically - we have such machine. I will separate them a bit.

jordens commented 4 years ago

Yes. I have seen the break line. But that breaks by bending and you can't bend the connectors when mated. So you'd have to make sure that they are mounted after breaking. I don't know how the assembly works and how much is done manually, but it might be easier to allow the board to be broken off after all assembly. That would require separating the boards by more.

gkasprow commented 4 years ago

Actually we have a special machine that separates the boards. We don't break them manually. It's logistically easier to do after automatic soldering. Once you separate them, It's hard to grip it for automatic soldering...

jordens commented 4 years ago

Right. As mentioned I thought that you solder before separating. Then I wonder how the machine separates without bending or shearing (which would both stress the mated connectors a lot) and also without direct access to both sides of the drill lines.

jordens commented 4 years ago

I guess if it's a saw or end mill that does the separation, this is fine.

gkasprow commented 3 years ago

I separated the two boards obraz